CVE-2025-53701 Overview
CVE-2025-53701 is a Reflected Cross-Site Scripting (XSS) vulnerability in Vilar VS-IPC1002 IP cameras manufactured by Vimicro. The flaw resides in the /cgi-bin/action endpoint, which fails to sanitize parameters supplied in HTTP GET requests. An attacker who tricks a logged-in administrator into visiting a crafted URL can execute arbitrary JavaScript in the administrator's browser session. Only firmware version 1.1.0.18 was tested, though other versions may also be affected. The vendor did not respond to disclosure attempts, leaving the issue unpatched.
Critical Impact
A logged-in administrator visiting a malicious link can have arbitrary JavaScript executed in their browser context, enabling session abuse and unauthorized camera actions.
Affected Products
- Vimicro VS-IPC1002 IP camera hardware
- Vimicro VS-IPC1002 firmware version 1.1.0.18
- Potentially other VS-IPC1002 firmware versions (untested)
Discovery Timeline
- 2025-10-23 - CVE-2025-53701 published to NVD by CERT Poland
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-53701
Vulnerability Analysis
The vulnerability is a Reflected Cross-Site Scripting flaw [CWE-79] in the web management interface of the VS-IPC1002 IP camera. The /cgi-bin/action endpoint reflects user-controlled GET parameters directly into HTTP responses without proper output encoding or input sanitization. When an authenticated administrator loads a URL containing an attacker-crafted payload, the injected script executes with the administrator's browser privileges.
Because the attack requires user interaction and adjacency to the camera's network, exploitation typically targets administrators who access the camera from an internal network. Successful exploitation lets attackers hijack administrative sessions, alter camera configuration, disable recording, or pivot into other internal systems reachable from the administrator's browser.
Root Cause
The root cause is missing input validation and output encoding on parameters received by the /cgi-bin/action handler. The CGI process embeds the raw parameter values into HTML responses, allowing HTML and JavaScript metacharacters to break out of their intended context. There is no Content Security Policy (CSP) or HttpOnly cookie enforcement documented that would limit the impact.
Attack Vector
Exploitation follows the standard reflected XSS pattern. The attacker crafts a URL targeting /cgi-bin/action on the camera's IP address with a vulnerable parameter containing a JavaScript payload. The attacker then delivers the URL to an authenticated administrator through phishing, an internal chat message, or an embedded iframe on an adjacent web resource. When the administrator clicks the link, the camera reflects the payload back and the browser executes it under the camera's origin, granting access to session cookies and authenticated CGI actions.
Refer to the CERT Poland CVE-2025-53701 Report for the disclosure details.
Detection Methods for CVE-2025-53701
Indicators of Compromise
- HTTP GET requests to /cgi-bin/action containing URL-encoded <script>, onerror=, onload=, or javascript: substrings in query parameters.
- Web access logs showing camera administration requests originating from unexpected external referrers.
- Unusual configuration changes on the camera immediately after an administrator session accesses the device.
Detection Strategies
- Inspect network traffic destined for VS-IPC1002 cameras for CGI parameter values containing HTML or JavaScript metacharacters such as <, >, ", and '.
- Deploy a web application firewall or IDS signature that flags reflected script tags in query strings targeting /cgi-bin/ endpoints.
- Correlate administrator browser telemetry with camera access logs to identify sessions where suspicious URLs were visited.
Monitoring Recommendations
- Log all HTTP requests to camera management interfaces and forward them to a centralized SIEM for retention and analysis.
- Alert on administrator authentication events followed by non-standard CGI parameters within the same session.
- Monitor internal phishing reports and email gateways for links pointing to internal camera IP addresses.
How to Mitigate CVE-2025-53701
Immediate Actions Required
- Restrict access to the camera's web interface to a management VLAN and block administrator access from general-purpose workstations.
- Require administrators to log out of the camera interface immediately after configuration changes to shorten session windows.
- Educate administrators about clicking untrusted links while authenticated to embedded device management interfaces.
Patch Information
No vendor patch is available. According to the CERT Poland advisory, Vimicro did not respond to disclosure attempts. Organizations should treat the device as permanently vulnerable and apply compensating network controls, or plan replacement with a supported alternative.
Workarounds
- Place VS-IPC1002 cameras on an isolated network segment reachable only through a jump host or bastion.
- Use a reverse proxy in front of the camera that strips or encodes HTML metacharacters from query parameters before forwarding requests to /cgi-bin/action.
- Enforce browser-side protections such as NoScript or per-site script blocking when administrators must access the camera UI.
- Replace unsupported cameras with vendor-maintained models that receive security updates.
# Example: restrict camera management interface with iptables to a single admin host
iptables -A FORWARD -s 10.10.20.5/32 -d 10.10.50.10/32 -p tcp --dport 80 -j ACCEPT
iptables -A FORWARD -d 10.10.50.10/32 -p tcp --dport 80 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
